HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR

S-1131 Series

Seiko Instruments Inc.

12

⎛

⎠

⎞

ΔV

OUT

ΔTa • V

OUT

the output voltage temperature coefficient is

±100 ppm/°C.

*1

Example of S-1131B28 typ. product

−40

+25

+0.28 mV/°C

[V]

*1.

+85

Ta [

°C]

−0.28 mV/°C

Figure 12

A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.

ΔV

OUT

mV/°C

V

*2

×

ΔV

OUT

ΔTa • V

OUT

[]

ppm/°C

*3

÷ 1000

*1. Change in temperature of output voltage

*2. Set output voltage

*3. Output voltage temperature coefficient